Apache Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

What is Rack awareness?

997

How will format the HDFS ?

1061

what are the steps involved in commissioning adding

909

How to use Apache Zookeeper command line interface?

1137

Can NameNode and DataNode be a commodity hardware?

1679

What are the steps to submit a Hadoop job?

906

What is the heartbeat used for?

1045

How would you tackle counting words in several text documents?

1022

What are the Basics of Hadoop?

928

Explain the shuffle?

911

How blocks are distributed among all data nodes for a particular chunk of data?

1090

How can I install Cloudera VM in my system?

955

How we can take Hadoop out of Safe Mode?

IBM,

855

What is Writable & WritableComparable interface?

924

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1075

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Un-Answered Questions { Apache Hadoop }

Explain the wordcount implementation via hadoop framework ?

724

Explain the features of stand alone (local) mode?

612

What is the difference between traditional RDBMS and Hadoop?

1170

How to Administering Hadoop?

900

What is small file problem in hadoop?

782

What is DistributedCache and its purpose?

902

Should we use RAID in Hadoop or not?

1058

Is secondary namenode a substitute to the namenode?

684

How can I restart namenode?

717

Why is Apache Spark faster than Apache Hadoop?

842

How to enable recycle bin or trash in hadoop?

706

What is HDFS - Hadoop Distributed File System?

962

What is difference between split and block in hadoop?

1394

how can we change Replication Factor?

1019

How can we check whether namenode is working or not?

659

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